Improvement in annealing apparatus



E. J. WATSON. Annealng Apparatus'.

No. 222,969. Patented Dec. 23,1879.

W Ql

' UNITED SrATEs PATENT OFFICE.

EDWIN J. WATSON, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN ANNEALING APPARATUS.

Specification forming part of Letters Patent No. 222,969, dated December23, 1879; applicationifiled October 25, 1879.

To all whom t't may concem:

Be it known that I, EDWIN J. WATSON, of Worcester, in the county ofWorcester and State of Massachusetts, have invented certain new anduseful Improvements in Meehanism for Annealing Wire; and I do herebydeclare that the following is a full, clear, and exact description ofthe construction and operation ofthe same, reference being had to theannexed drawing, making a part of this specification, and to the lettersand figures of reference marked thereon.

Figure 1 of the drawing is a representation of a side elevation ofmydevice, partly broken away to show my improvements.

My invention relates to improvements in niechanism for annealing Wire;and it consists of a furnace having an annealing-vat, in which areplaced rollers so arranged as to eonvey the Wire passing over them twoor more times through the molten mass in the annealing-vat before itenters the cooling-bath, as will be hereinafter fully described, andparticularly pointed out in the claiin.

Under my invention I pass the Wire or strip through a furnace or bath oflnolten lead one or more times, by running it around rollers placed inthe annealing-vat over the heatingfurnace. I then pass the n ire orstrip through a bath of oil or water, which cools the same; and,iinally, I pass it through a die or pair of rolls, where it iscold-rolled and reduced to the required size.

It will be readily understood by those skilled in the art that thetexture of the metal is much better when cold-rolled than when rolled ordrawn while hot.

The object of passing the Wire over the rollers and through the moltenmass in the annealing-vat two 01' more times is, that the Wire may bethoroughly annealed, and also that the annealing-vat and furnace mayoccupy less space than if the Wire Were passed through as has beencustomary. In the Old devices the Wire required to be annealed severaltimes before being reduced, Whieh required considerable time, and thedevices took up too great space.

Referring to the drawing, A designates the vat which 'contains the bathof molten lead or other metal suitable for annealing purposes. This vatis properly fitted in the top of a furnace, B, which is prov-ided Withthe usual doors O, grate D, ash-pit E, and doors F, openin, into theash-pit.

The rollers G G, around which the Wire or strip is passed, arejournaledin suitable bra-ekets, and arranged in pairs Within the vat or furnace,so that the Wire or iod passing between the same Will be properly heatedor annealed.

H designates the Cooling-vat at one end of the furnace A. This vat issupplied with Water or oil for the purpose of cooling` the Wirepreparatory to reducing the same, and it has a roller, I, jonrnaled in asuitable bracket, and arranged so as to guide the Wire 01' strip throughthe cooling-bath.

Adjacent to the cooling vat or tank are dies or rolls K K, for thepurpose of redueing the lWire or strip While cold.

As herein shown, the rolls are inounted in suitable housings, and theupper roll rendered adjustable by means of adjustable blocks L andscreW-bolts M.

What I elaim, and desire to secure by Letters Patent, is-

The furnace B, having an annealing-vat, A, in which are rollers G G,arranged in such a manner as to eonvey the Wire passing over themthrough the mass in the annealing-bath two or more times before entering the coolingbath, as and for the purpose set forth.

In testimony that I claim the above l have hereunto subscribed my namein the presence of two witnesses.

EDWIN J UDSON Witnesses:

A. S. WA'rsoN, HoRAeE W. WILLsoN.

WA'rsoN.

